CN109096654A - A kind of corrosion-resisting compound pipe material - Google Patents
A kind of corrosion-resisting compound pipe material Download PDFInfo
- Publication number
- CN109096654A CN109096654A CN201810976433.9A CN201810976433A CN109096654A CN 109096654 A CN109096654 A CN 109096654A CN 201810976433 A CN201810976433 A CN 201810976433A CN 109096654 A CN109096654 A CN 109096654A
- Authority
- CN
- China
- Prior art keywords
- attapulgite
- handled
- corrosion
- parts
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of corrosion-resisting compound pipe materials, are prepared by weight using following raw material: polyvinyl chloride resin 70-82%, PP resin 5-10%, basalt fibre 2-5%, attapulgite 7-10%.The material of the application has good anti-aging property and corrosion resistance, and material source used herein is extensive, relative inexpensiveness, will not generate very big pollution in treatment process to environment, and effect is obvious.
Description
Technical field
The invention belongs to pipeline material fields, are related to field of polymer composite material, and in particular to a kind of corrosion-resistant compound
Pipeline material.
Background technique
Pipeline refers to be used to convey gas, liquid or with solid with what pipe, pipe connector and valve etc. were connected into
The device of the fluid of grain.Having many uses for pipeline is general, is used primarily in water supply, draining, heat supply, gives gas, long distance delivery petroleum
In natural gas, agricultural irrigation, hydraulic engineering and various commercial plants.Present sewer pipe uses PVC sewer pipe more,
When preparation, although having certain corrosion resistance, in order to promote the corrosion resistance of material, often also needed using preceding
In inner wall of the pipe or external coating corrosion-resistant coating, higher cost is caused, and stability and coating and pipeline to coating
The adhesion of material has very high requirement.
Summary of the invention
The object of the present invention is to provide a kind of corrosion-resisting compound pipes to improve pipe by improving to raw pipeline material
The corrosion resistance in road, and it is raw material that is at low cost, being easy to get that raw material, which is added, and the cost of production can also be effectively reduced.
The invention is realized by the following technical scheme:
A kind of corrosion-resisting compound pipe material, is prepared using following raw material by weight: polyvinyl chloride resin 70-82%, PP resin 5-
10%, basalt fibre 2-5%, attapulgite 7-10%.
The attapulgite passes through modification, and modification procedure is as follows:
(1), attapulgite is weighed, using the sulfuric acid treatment 20-25min of 1.5mol/L, is then washed to neutrality；It (2), will step
Suddenly the attapulgite that (1) is handled well uses the acetone soln immersion treatment 10-12min of volume fraction 10%, uses in soaking process
Ultrasonic oscillation processing, ultrasonic frequency 25kHz, then drying to constant weight at 65-70 DEG C；
(3), the attapulgite that step (2) is handled well is put into treatment fluid and is handled, in treatment process, first use ultrasonic wave
20min is handled, then handles 2h using magnetic agitation, during magnetic agitation, intermittent warming is carried out within the scope of -4-75 DEG C,
Then it filters, the treatment fluid is made of following component by weight: 2.4 parts of calgon, 1.25 parts of ester based quaternary ammonium salt, hard
2.2 parts of fatty acid magnesium, 1.5 parts of nano zine oxide, 1 part of dioctyl phthalate, 20 parts of ethyl alcohol of volume fraction 65%；
(4), the attapulgite and silane coupling agent KH560 handled step (3) well are mixed by weight the ratio of 100:2.2
Afterwards, 20min is first stirred under 2000r/min revolving speed using high-speed mixer, microwave treatment 1-2min is then used, in 38-42
15-20min is handled at DEG C, is obtained attapulgite modified.
Attapulgite can be made preferably to contact with silane coupling agent using microwave treatment, and pass through microwave treatment, step
Suddenly the nano zine oxide in (3) in conjunction with attapulgite can also be generated with silane coupling agent and be contacted, and make nano zine oxide can be with
It is dispersed in attapulgite's surface, is conducive to contact with other raw materials, disperse, promote the stable of chemical bond, can also promote material
Corrosion resistance.
By carrying out pickling, organic solvent processing and drying to attapulgite's surface, it is micro- attapulgite's surface can be improved
The activity in hole, is then handled using treatment fluid, so that the activity of attapulgite's surface is stronger, is able to ascend and resin material
The effect dispersed with basalt fibre, and pass through coupling agent treatment, it can increase the stress such as attapulgite and resin after compound
Tie point promotes the intensity of connection.
In attapulgite modified processing, intermittent warming mode is as follows during magnetic agitation: first handling at -4 DEG C
10min then heats to 20 DEG C of processing 10min, is warming up to 45 DEG C of processing 5min, is warming up to 60 DEG C of processing 10min, is warming up to 75
DEG C processing 15min, is then cooled to 4 DEG C of processing 15min, then be warming up to 25 DEG C to terminate to intermittent warming.Attapulgite modified
In the process, by intermittent warming, the hole of attapulgite's surface is enabled to have certain contraction or diastole, treatment fluid is preferably
It is dispersed in the micropore of attapulgite's surface, promotes modified effect, and after addition, make material in contact soda acid equal solvent
When, molecule interchain has certain slipping space, not will cause molecular chain rupture, influences the performance of product.
The microwave treatment power is 400W.
The basalt fibre is handled using following methods, a, 30 parts of ethyl alcohol, the water for taking volume fraction 75% by weight
20 parts, 0.8 part of 2 parts of glacial acetic acid, silane coupling agent mixing 20min, are made solution；B, basalt fibre is used into quality point
The sulfuric acid solution immersion treatment 5-6min of number 18%, is then washed, and washes away the acid solution on surface, drying；C, step b is handled well
The solution immersion treatment 2-3h that basalt fibre is prepared using step a, then cleans, dries at 50-60 DEG C, obtain basalt
Fiber.Basalt fibre is handled using acid solution, on the one hand can remove the ingredients such as the impurity on surface, it on the other hand, can be with
Slight etching trace is formed on basalt fibre surface, promotes the surface area of basalt fibre, due to only in basalt fibre
Dimension table face forms more slight etching trace, and apparent negative effect can't be generated to its mechanical property, meanwhile, it can increase
Treatment fluid can be obviously improved coupling agent in the dispersing contact on basalt fibre surface in the attachment point on basalt fibre surface,
In basalt fibre and resin compounded, increase stress tie point, stress is enable to be dispersed, compound rear material can be promoted
Intensity can also promote wearability.
The silane coupling agent is Silane coupling agent KH550.
The compound pipeline complex pipeline is prepared using following methods, comprising the following steps:
(1), polyvinyl chloride resin pellet, PP resin granular material the drying and processing 2-3h at 85 DEG C are taken by weight；
(2), basalt fibre, attapulgite are added in the raw material handled well to step (1), is extruded into using double screw extruder
Type.
The extruder first segment temperature is 110-120 DEG C, and second segment temperature is 140-150 DEG C, and third section temperature is
155-167 DEG C, head temperature is 175-185 DEG C.
The draw ratio of extruder is 20:1.
PVC number-average molecular weight is 85000-87000 in the application, and PP number-average molecular weight is 42000-45000.
Beneficial effects of the present invention: wearability composite pipe material provided by the present application is multiple using polyvinyl chloride resin and PP resin
Cooperation is resin matrix, and PP can improve the crystal property of polyvinyl chloride resin, basalt fibre and attapulgite modified is added, utilization is profound
The effect of military rock fiber and attapulgite as skeleton and crosslinking points promotes the humidification to resin, can be obviously improved pipeline
Magnesium stearate, dioctyl phthalate, tool is added in the mechanical property and wear-resisting property of finished product during attapulgite modified
There are the anti-aging property and corrosion resistance for being able to ascend material, attapulgite can significantly reduce auxiliary agent in use again
It is lost, promotes the safety during materials'use, reduce the pollution to environment.Moreover, material source used herein
Extensively, relative inexpensiveness, very big pollution will not be generated in treatment process to environment, and effect is obvious.
Due to the porous suction-operated of attapulgite, when material after shaping is by external force, attapulgite and resin by
In stronger interface connection function, reduce the probability of joint face fracture, moreover, because joined basalt fibre during the preparation process
Dimension, basalt fibre and attapulgite can form the structure of jack, can in stress dispersive stress, and have strand
Certain extendable room, and then it is obviously improved the wear-resisting of compound system, corrosion resistance and mechanical property.
Specific embodiment
Embodiment 1
A kind of corrosion-resisting compound pipe material, is prepared using following raw material by weight: polyvinyl chloride resin 79%, PP resin 8%, the Black Warrior
Rock fiber 4%, attapulgite 9%.
The attapulgite passes through modification, and modification procedure is as follows:
(1), attapulgite is weighed, using the sulfuric acid treatment 20-25min of 1.5mol/L, is then washed to neutrality；It (2), will step
Suddenly the attapulgite that (1) is handled well uses the acetone soln immersion treatment 10-12min of volume fraction 10%, uses in soaking process
Ultrasonic oscillation processing, ultrasonic frequency 25kHz, then drying to constant weight at 65-70 DEG C；
(3), the attapulgite that step (2) is handled well is put into treatment fluid and is handled, in treatment process, first use ultrasonic wave
20min is handled, then handles 2h using magnetic agitation, during magnetic agitation, intermittent warming is carried out within the scope of -4-75 DEG C,
Then it filters, the treatment fluid is made of following component by weight: 2.4 parts of calgon, 1.25 parts of ester based quaternary ammonium salt, hard
2.2 parts of fatty acid magnesium, 1.5 parts of nano zine oxide, 1 part of dioctyl phthalate, 20 parts of ethyl alcohol of volume fraction 65%；
(4), the attapulgite and silane coupling agent KH560 handled step (3) well are mixed by weight the ratio of 100:2.2
Afterwards, 20min is first stirred under 2000r/min revolving speed using high-speed mixer, microwave treatment 80s is then used, at 40 DEG C
15min is managed, is obtained attapulgite modified.
In attapulgite modified processing, intermittent warming mode is as follows during magnetic agitation: first handling at -4 DEG C
10min then heats to 20 DEG C of processing 10min, is warming up to 45 DEG C of processing 5min, is warming up to 60 DEG C of processing 10min, is warming up to 75
DEG C processing 15min, is then cooled to 4 DEG C of processing 15min, then be warming up to 25 DEG C to terminate to intermittent warming.
The microwave treatment power is 400W.
The basalt fibre is handled using following methods, a, 30 parts of ethyl alcohol, the water for taking volume fraction 75% by weight
20 parts, 0.8 part of 2 parts of glacial acetic acid, silane coupling agent mixing 20min, are made solution；B, basalt fibre is used into quality point
The sulfuric acid solution immersion treatment 5-6min of number 18%, is then washed, and washes away the acid solution on surface, drying；C, step b is handled well
The solution immersion treatment 2-3h that basalt fibre is prepared using step a, then cleans, dries at 50-60 DEG C, obtain basalt
Fiber.
The silane coupling agent is Silane coupling agent KH550.
Embodiment 2
A kind of corrosion-resisting compound pipe material, is prepared using following raw material by weight: polyvinyl chloride resin 70-82%, PP resin 5-
10%, basalt fibre 2-5%, attapulgite 7-10%.Other processing modes are the same as embodiment 1.
Embodiment 3
Compared with Example 1, the basalt fibre in the embodiment is without modification.
Experiment 1
In order to verify the performance of composite pipe material prepared by the application method, to the composite pipe material of the application method preparation
Performance is verified, as a result such as table 1；
Comparative example 1
Compared with Example 1, attapulgite is without modification.
Comparative example 2
Compared with Example 1, in step (3) without intermittent warming.
Comparative example 3
Compared with Example 1, attapulgite is not used.
Comparative example 4
Compared with Example 1, basalt fibre is not used.
Comparative example 5
Compared with Example 1, nano zine oxide is not used in the treatment fluid in attapulgite treatment process.
Comparative example 6
Compared with Example 1, it in attapulgite processing step (4), is handled without using silane coupling agent.
Comparative example 7
Compared with Example 1, in attapulgite treatment process, microwave treatment is not used after mixing with coupling agent.
Comparative example 8
Compared with Example 1, magnesium stearate is not used in the treatment fluid of attapulgite treatment process.
Comparative example 9
Compared with Example 1, dioctyl phthalate is not used in the treatment fluid of attapulgite treatment process.
Table 1
Note: acid resistance is that the sample for being 20mm*20mm*3mm by size is put into the sulfuric acid solution that mass fraction is 15% in table 1,
720h is handled at room temperature, measures mass loss rate.
Alkali resistance is that the sample for being 20mm*20mm*3mm by size is put into the sodium hydroxide solution that mass fraction is 15%,
720h is handled at room temperature, measures mass loss rate.
Tensile strength is tested using GB1040-2006 method.
As shown in Table 1, the performance for the compound pipeline complex pipeline that in the application prepared by embodiment is answered better than prepared by mode in comparative example
Pipeline is closed, illustrates that treated attapulgite in the application, basalt fibre, PP there is enhancing well to make PP material
With, moreover, for finished product resistance to acid and alkali have be obviously improved effect.
Experiment 2
It is in order to verify the anti-aging property of composite pipe material of the present invention, each group sample is natural in 28-32 DEG C of outdoor environment
Aging 200 days, each group sample tensile strength, bending strength conservation rate are then tested, as a result such as table 2；
Table 2
As shown in Table 2, the anti-aging property of the composite pipe material prepared using the application is substantially better than anti-ageing in comparative example
It by force can change, illustrate that the application material has better ageing-resistant performance.
Experiment 3
In order to verify the corrosion resistance of composite pipe material of the present invention, the hydrochloric acid solution for being 5% in mass fraction by each group sample
With immersion treatment 50 days in the sodium hydroxide solution of mass fraction 5%, the temperature of solution is maintained at 25-26 DEG C, then tests each group
Sample tensile strength, bending strength conservation rate, as a result such as table 3；
Table 3
As shown in Table 3, the material that prepared by the embodiment of the present application 1,2,3 tensile strength and bending strength conservation rate in acid-base solution
It is obviously improved relative to comparative example, illustrates that the material of the application has better acid-alkali-corrosive-resisting performance.
Claims (6)
1. a kind of corrosion-resisting compound pipe material, which is characterized in that prepared by weight using following raw material: polyvinyl chloride resin 70-
82%, PP resin 5-10%, basalt fibre 2-5%, attapulgite 7-10%.
2. a kind of corrosion-resisting compound pipe material according to claim 1, which is characterized in that the attapulgite is by changing
Property processing, modification procedure is as follows:
(1), attapulgite is weighed, using the sulfuric acid treatment 20-25min of 1.5mol/L, is then washed to neutrality；It (2), will step
Suddenly the attapulgite that (1) is handled well uses the acetone soln immersion treatment 10-12min of volume fraction 10%, uses in soaking process
Ultrasonic oscillation processing, ultrasonic frequency 25kHz, then drying to constant weight at 65-70 DEG C；
(3), the attapulgite that step (2) is handled well is put into treatment fluid and is handled, in treatment process, first use ultrasonic wave
20min is handled, then handles 2h using magnetic agitation, during magnetic agitation, intermittent warming is carried out within the scope of -4-75 DEG C,
Then it filters, the treatment fluid is made of following component by weight: 2.4 parts of calgon, 1.25 parts of ester based quaternary ammonium salt, hard
2.2 parts of fatty acid magnesium, 1.5 parts of nano zine oxide, 1 part of dioctyl phthalate, 20 parts of ethyl alcohol of volume fraction 65%；
(4), the attapulgite and silane coupling agent KH560 handled step (3) well are mixed by weight the ratio of 100:2.2
Afterwards, 20min is first stirred under 2000r/min revolving speed using high-speed mixer, microwave treatment 1-2min is then used, in 38-42
15-20min is handled at DEG C, is obtained attapulgite modified.
3. a kind of corrosion-resisting compound pipe material according to claim 2, which is characterized in that in attapulgite modified processing
When, intermittent warming mode is as follows during magnetic agitation: first handling 10min at -4 DEG C, then heats to 20 DEG C of processing
10min is warming up to 45 DEG C of processing 5min, is warming up to 60 DEG C of processing 10min, is warming up to 75 DEG C of processing 15min, is then cooled to 4
DEG C processing 15min, then be warming up to 25 DEG C and terminate to intermittent warming.
4. a kind of corrosion-resisting compound pipe material according to claim 2, which is characterized in that the microwave treatment power is
400W。
5. a kind of corrosion-resisting compound pipe material according to claim 1, which is characterized in that the basalt fibre uses
Following methods are handled, a, 2 parts of 20 parts of 30 parts of ethyl alcohol, water, glacial acetic acid, the silane coupling agent for taking volume fraction 75% by weight
0.8 part of mixing 20min, is made solution；B, basalt fibre is used to the sulfuric acid solution immersion treatment 5- of mass fraction 18%
Then 6min is washed, wash away the acid solution on surface, drying；C, the basalt fibre that step b is handled well is prepared using step a
Solution immersion treatment 2-3h, is then cleaned, and is dried at 50-60 DEG C, is obtained basalt fibre.
6. a kind of corrosion-resisting compound pipe material according to claim 5, which is characterized in that the silane coupling agent is silicon
Alkane coupling agent KH550.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810976433.9A CN109096654A (en) | 2018-08-25 | 2018-08-25 | A kind of corrosion-resisting compound pipe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810976433.9A CN109096654A (en) | 2018-08-25 | 2018-08-25 | A kind of corrosion-resisting compound pipe material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109096654A true CN109096654A (en) | 2018-12-28 |
Family
ID=64850972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810976433.9A Withdrawn CN109096654A (en) | 2018-08-25 | 2018-08-25 | A kind of corrosion-resisting compound pipe material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109096654A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109627635A (en) * | 2018-12-19 | 2019-04-16 | 郑州登电玄武石纤有限公司 | A kind of electrical isolation casing |
| CN111019263A (en) * | 2019-12-24 | 2020-04-17 | 余姚市宏达喷雾器有限公司 | High-toughness flame-retardant sprayer shell material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751231A (en) * | 2017-03-29 | 2017-05-31 | 四会市恒星智能科技有限公司 | A kind of high-strength corrosion-resisting plastic inspection well and preparation method thereof |
-
2018
- 2018-08-25 CN CN201810976433.9A patent/CN109096654A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751231A (en) * | 2017-03-29 | 2017-05-31 | 四会市恒星智能科技有限公司 | A kind of high-strength corrosion-resisting plastic inspection well and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨明山等: "《现代工程塑料改性--理论与实践》", 31 July 2009 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109627635A (en) * | 2018-12-19 | 2019-04-16 | 郑州登电玄武石纤有限公司 | A kind of electrical isolation casing |
| CN111019263A (en) * | 2019-12-24 | 2020-04-17 | 余姚市宏达喷雾器有限公司 | High-toughness flame-retardant sprayer shell material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103865295B (en) | Method for polymer surface modification of hollow glass micro-bead | |
| CN109096654A (en) | A kind of corrosion-resisting compound pipe material | |
| CN110922611A (en) | MXene hydrogel with high strength, conductivity and high and low temperature resistance as well as preparation method and application thereof | |
| CN114015075B (en) | Preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation | |
| CN104761882A (en) | Preparation method for oxidized graphene/water-soluble polyurethane composite material | |
| CN105908514A (en) | Treatment method of machine washable down feather | |
| CN106700312B (en) | Heat-preservation and heat-insulation polyvinyl chloride composition | |
| CN109181245A (en) | A kind of anti-aging, high abrasion is packaged the preparation method of carrying material | |
| CN109082044A (en) | A kind of preparation method of intermediate water pipeline substrate | |
| CN109971047B (en) | Natural rubber-white carbon black composite material and preparation method and application thereof | |
| CN110734590B (en) | Method for preparing emulsion polymerized styrene-butadiene rubber from ionic liquid and chitosan modified carbon black | |
| CN105063999A (en) | Method for in situ growth of polyamide on surface of carbon fiber, and controllable hyperbranching of iteration number | |
| CN104131459B (en) | A kind of vinyl ester carbon fiber sizing agent containing CNTs and preparation method thereof | |
| CN107286547B (en) | Preparation method of chitin liquefied product/polyvinyl alcohol blending film | |
| CN108383945B (en) | Agricultural water-retaining agent and preparation method thereof | |
| CN106752830A (en) | One kind is for electric armour clamp corrosion-resistant high-strength composite organic silicon modified polyurethane water paint and preparation method thereof | |
| CN109181246A (en) | A kind of high wearable Combined baling belt masterbatch | |
| CN105524424A (en) | Antibacterial antistatic epoxy composite material and preparation method thereof | |
| CN108276765A (en) | A kind of intercalated graphite alkene composite anti-corrosive bamboo moulding material and preparation method thereof | |
| CN107217491A (en) | The method that polyaniline-coated is modified chopped carbon fiber | |
| CN104419363A (en) | Method for producing phenolic resin-nitrile rubber adhesive | |
| CN108440812B (en) | Bioengineering rubber and preparation method thereof | |
| CN110004707A (en) | A method of the sizing agent surface modified carbon fiber containing carbon nanomaterial | |
| CN114716718B (en) | Double-network conductive hydrogel and preparation method thereof | |
| CN110387055A (en) | A kind of preparation method of high-strength light carbon fibre composite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181228 |